YouTube is one of the popular video sharing websites. You can freely share your own videos with your friends by uploading them to YouTube. YouTube supports many video formats including FLV, AVI, MPEG, WMV etc. In the information era, you can be accessible to all kinds of interesting and novel videos. In some cases, you can't help storing these meaningful videos on your computer. But here comes a problem. Can YouTube allow you to download videos from the Internet? Unfortunately, in order to maintain its popularity, YouTube doesn't allow users to download videos to the computer. So are there any ways to download videos from YouTube? The answer is positive. Even though YouTube doesn't provide the direct way for you to download, you can make full use of the YouTube downloader add-on to achieve the purpose. If you are looking for the solutions, then I will introduce the best YouTube downloader add-on for Mozilla Firefox, Google Chrome and Safari browsers respectively.

Part 1: YouTube Download Add-on for Mozilla Firefox

If you are logging in your YouTube on Mozilla Firefox browser, then you need to select a YouTube download add-on for Firefox version. One of the top Mozilla YouTube download add-on on my recommendation list is YouTube High Definition. As a totally free Mozilla YouTube download add-on, YouTube High Definition can help you to play and download videos on YouTube in high definition with ease. After installing this browser add-on, the videos in high definition will be played automatically. Besides, this YouTube download add-on for Firefox can automatically play high definition videos from external sites, such as Facebook and Twitter and so on. Also, you can alter the player size and edit the audio and video parameters.


Part 2: YouTube Download Add-on For Google Chrome

If you are used to logging in your YouTube on Google Chrome browser, you can also choose an add-on crop for Google Chrome. Here are multiple YouTube Download Add-ons for Google Chrome after you search the key word on Google search box. I would like to suggest you to download movie maniacs as your add-on to download YouTube video. Movie maniacs add-on allows you to select any video format to save on your computer. You have no need to download the incompatible video format that won’t be played on your media streaming devices. Moreover, the downloaded file are all automatically saved in a high definition.


Part 3: YouTube Downloader for Safari

Of course, you can find the appropriate YouTube downloader for Mac users. If you are running YouTube on Safari browser, then you can take a try on MacX YouTube Downloader to help you download videos from YouTube. Compared with youtube download add-on for Firefox, this add-on can also download 1080P, 4K, FLV format videos easily. Additionally, the add-on allows you to view and download videos from Vevo, Vimeo, Facebook and other authoritative sites.


Bonus 1: Best YouTube download software: Leawo Video Downloader

So in order to download your favorite videos on YouTube, you may need a piece of third-party software. Without any doubts, Leawo Video Downloader will be your best choice. Apart from downloading videos from various video sharing websites, it can download any online flash videos freely. Also it offers a free built-in browser and online video player and can manage downloaded videos for different occasions. Now take a look at the instructions.

Step 1. Download and open Leawo Video Downloader.
Step 2. Click "Download" button and paste video URL in the address box. Or you can watch the videos with the built-in browser online and the videos will be downloaded at the same time.
Step 3.There is a little green arrow on the right bar. Click it to open the wait-to-select panel. You can choose the video with the appropriate resolution. Then click the download icon.
Step 4. You can check the downloading videos under the "Downloading" panel. After the completion of downloading, then you can see the video files on your computer.

Bonus 2: Best YouTube Player Software: Leawo Blu-ray Player

After downloading the videos from YouTube, you need to prepare a piece of powerful player in order to enjoy the best quality of audio and video. Here I will strongly recommend Leawo Blu-ray Player to you. As a 100% free and 6-in-1 media player software, Leawo Blu-ray Player contains all media playback solutions you need for your leisure entertainment, including Blu-ray, DVD, CD, HD (4K), ISO file with AVI, MPEG, WMV, ASF, FLV, MKV/MKA and other popular formats supported.


Leawo Free Blu-ray Player 

☉ 100% free movie player for Mac users to play Ultra HD 4K, 1080P and 720P video for free.

☉ Free Blu-ray disc player to play 4K Blu-ray disc and 1080P Blu-ray disc, regardless of disc protection and region code.

☉ Support multiple audio decoding systems like Dolby, DTS, AAC, TrueHD, DTS-HD, etc.

☉ Adjust subtitles, video and audio during media playback.

With advanced image and audio processing technology, Leawo Free Blu-ray Player software could provide you quality-lossless image for even 4K video, stereo audio enjoyment, all regions free DVD decryption and user-oriented playback control. Besides, Leawo Blu-ray Player's practical bonus features including useful power manager, custom skin / language / background, snap screenshots, especially virtual remote controller make it a better choice for all playback choice. Furthermore, within Leawo Blu-ray Player, you could obtain the personalized settings according to your preference and all the settings could be done automatically.


Anyway, you will not be bothered by the problem on how to download videos from YouTube by referring to the above solutions. You can install some add-ons YouTube downloader for Mozilla Firefox, Chrome or Safari, or you can just use Leawo Video Downloader to help you with ease and efficiency.